I would like to see in a future version of the game, commander, when activated activates given him the command line. When an item is selected, a window appears in which you must specify what command he will activate. Activated by any wire.
Basically we don't want to open up the possibility of lua viruses or other annoying things command blocks could do (like lag). Also it's better to keep direct property setting to a minimum, in case we change in the future what a property does.